Magnetic structure for a loudspeaker



FIG. 1 is a bottom perspective view of the magnetic structure for a loudspeaker, showing my new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a top plan view thereof; and,

FIG. 4 is a side elevational view thereof, the remaining sides being identical. 

The ornamental design for a magnetic structure for a loudspeaker, as shown and described. 